{"topic_id":"companion_breeding_dog","category":"companion-breeding","context":"---\ntopic_id: companion_breeding_dog\ncategory: companion-breeding\ntitle: \"Dog — spay/neuter (recommended unless bred; timing & cancer/marking prevention)\"\nlang: en\nsource: \"Merck Veterinary Manual — pet owner version (merckvetmanual.com). First-hand consumer text saved to source_file; C1 substring-verified. Pulled/extracted 2026-08-01.\"\nsource_file: /home/cai/notes/knowledge/side-projects/petfood-data-station/pdf-raw/companion-care/dog_owner_combined.txt\ndate_parsed: 2026-08-01\ntokens_estimated: 560\nverification:\n  method: substring_match\n  claims: 12\n  passed: 12\n  date: 2026-08-01\nrecovered: false\npath: companion-breeding/companion_breeding_dog/01_companion_breeding_dog.md\nsource_document: \"Merck Veterinary Manual — pet owner version\"\ncitation:\n  authority: \"Merck Veterinary Manual (merckvetmanual.com), pet owner version\"\n  title: \"Dog — spay/neuter (recommended unless bred; timing & cancer/marking prevention)\"\n  url: \"https://www.merckvetmanual.com/dog-owners/routine-health-care-of-dogs\"\n  retrieved: \"2026-08-01\"\n  ref: \"Routine Health Care of Dogs (Merck pet-owner version)\"\n  doc_type: \"professional veterinary manual (consumer version)\"\n  needs_review: false\n---\n\n# Dog — spay/neuter (recommended unless bred; timing & cancer/marking prevention)\n\nSource: first-hand Merck Veterinary Manual pet-owner text, saved to `source_file`; every claim below is a C1 byte-substring of it.\n\n## Claims\n\n- `All dogs should be spayed or neutered unless they are being bred.`\n- `Female dogs should be spayed at around 6 months old, before their first heat (breeding) cycle.`\n- `Doing so helps prevent mammary (breast) cancer and uterine cancer.`\n- `Male dogs should be neutered when they are 5–10 months old.`\n- `This can help prevent urine marking and other behavior problems.`\n- `Large-breed dogs should be fed smaller meals at least twice a day to prevent their stomachs from bloating.`\n- `For most dog breeds, you should always be able to feel the animal's spine and ribs, but not see them.`\n- `Some breeds with breathing issues, like French Bulldogs or Pugs, may not handle long exercise sessions well but can still benefit from shorter walks.`\n- `Some breeds, like Irish Setters and Dalmatians, are more energetic than calmer breeds, like Newfoundlands or Basset Hounds, and might need more attention.`\n- `Most dogs reach adulthood at 9–12 months, but large and giant breed dogs can take almost 2 years to become adults.`\n- `Depending on their breed, once puppies become adults, they should be switched from puppy food to adult dog food.`\n- `Does My Dog Need to Be Spayed or Neutered? The surgery to prevent a dog from breeding is called spaying in females and neutering in males.`\n\n---\n\n**Source:** `pdf-raw/companion-care/companion_dog_husbandry_src.txt` · https://www.merckvetmanual.com/dog-owners/routine-health-care-of-dogs\n","sources":["companion-breeding — Dog — spay/neuter (recommended unless bred; timing & cancer/marking prevention) (retrieved 2026-08-01)"],"source":{"authority":"companion-breeding","title":"Dog — spay/neuter (recommended unless bred; timing & cancer/marking prevention)","url":"https://www.merckvetmanual.com/dog-owners/routine-health-care-of-dogs","retrieved":"2026-08-01","ref":"","doc_type":"official PDF","source_document":"Merck Veterinary Manual — pet owner version","verification_file":"/home/cai/notes/knowledge/side-projects/petfood-data-station/pdf-raw/companion-care/dog_owner_combined.txt"},"source_document":"Merck Veterinary Manual — pet owner version","source_file":"/home/cai/notes/knowledge/side-projects/petfood-data-station/pdf-raw/companion-care/dog_owner_combined.txt","tokens_estimated":474,"generated_at":null,"tip":"Use /api/v1/topics to discover more topics. /api/v1/nutrient for precise single-point queries. /api/v1/cross_compare for 2-3 standard comparisons."}